I designed those decals in freeware Inkscape - the problem is that I had to make a CMYK legend for colours other than black and white due to the fact that this software do not use CMYK palette. Then I send it converted into curves in PDF format to the company who specializes in it in Poland: http://www.mf-zone.pl/. The cost is approx. 40 EURO for A4 sheet. The film could be a bit thinner...There is also a company in Germany which is printingcustom made decals but they require Corel files. They look to be cheaper. http://www.decalprint.de/Webseite_2016/

I know that A4 is like "an ocean" for T scale.. In case someone would like to add some decals - please contact me privately. I can always add your design to my sheet. In my Z scale A4 is just like "a sea" so I can not quarantee short terms. As I mentioned those decals were my first ever so I will have to make some changes. I also have some fellow Z-scalers so I belive I will be preparing something in some days/weeks.